/Engine/Source/Editor/CurveEditor/Public/Filters/CurveEditorFilterBase.h
Applies the filter to all keys on the specified curves. The curves are passed to the filter as a set so that a filter can choose to operate on multiple curves at once if data from other curves is important.
void ApplyFilter ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FCurveEditor](API\Editor\CurveEditor\FCurveEditor) > InCurveEditor, const [TSet](API\Runtime\Core\Containers\TSet)< [FCurveModelID](API\Editor\CurveEditor\FCurveModelID) > & InCurves, [TMap](API\Runtime\Core\Containers\TMap)< [FCurveModelID](API\Editor\CurveEditor\FCurveModelID), [FKeyHandleSet](API\Editor\CurveEditor\FKeyHandleSet) > & OutKeysToSelect )